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Silent And Solo Do Now

Silent And Solo Do Now. You have 5 minutes to create a timeline It should include the following events: Formation of the Earth When bacteria (1 st life form) appeared on Earth Permian Extinction Cretaceous Extinction Take out your “Relative dating lab” and homework and PUT ON TABLE.

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Silent And Solo Do Now

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  1. Silent And Solo Do Now • You have 5 minutes to create a timeline • It should include the following events: • Formation of the Earth • When bacteria (1st life form) appeared on Earth • Permian Extinction • Cretaceous Extinction • Take out your “Relative dating lab” and homework and PUT ON TABLE

  2. Homework: • Complete questions for “Virtual fossil hunt” • Complete questions 1-5 on page 15 of LOT.

  3. Put away everything except your timeline.

  4. Now exchange papers with your face partner.

  5. When was the Earth formed? • When was Pangea formed? • These are two separate events. The Earth was formed, and later in history the continents moved together. The Earth was not created with the continents together.

  6. Virtual fossil hunt • Everyone take their lab and a pencil and move to the sides of the room. • Count off from 1-7. • Go to the appropriate table.

  7. Virtual Fossil Hunt • Day 1: Take 4 fossils out of your envelop. Fill in table 1. • Day 2: Take another 4 fossils out of your envelop. Fill in table 1. • Day 3: Take a gallery tour of other tables. Look at their fossil pieces. Fill in table 1.

  8. Do Now • Pick up all papers from front cart • Hand in Questions 1-5 from LOT book and “Virtual Fossil hunt”. • Read and complete “Theory of Evolution through Natural Selection” • Homework: Read Ch1 section 2 LOT; complete study guide A (both sides)

  9. Cell phone technology • Look at the pictures of cell phones at your table. • Silent and solo, write down answers • What is different about the cell phones? • Why did cell phones change?

  10. Pair, Share • Discuss your answers with the students at your table. • How did technology allow cell phones to change? • When a new cell phone is introduced, do older versions vanish? Or are they sold less often?

  11. Brainstorm: What is Evolution? • Evolution is the process through which species change over time. • Organisms change genetically, and this change is passed on to new generations.

  12. Where did the theory come from? • Jean Lamarck suggested that an organism can acquire a new trait during its lifetime, and pass on that trait to its offspring. • Giraffes are an example • Couldn’t prove his theory.

  13. Charles Darwin’s journey • Charles Darwin was a naturalist • Had experience with artificial selection • Humans select traits in organisms and breed organisms that have those traits • example: different varieties of dogs • Can you think of another example? • Traveled for 5 years on the HMS Beagle

  14. Darwin’s journey • How could similar species inhabit different habitats?

  15. Darwin’s journey • How could different, yet related, species inhabit different habitats within the same area?

  16. Darwin’s journey • How could fossils of extinct animals be similar to living species?

  17. Darwin’s finches

  18. Do Now • Hand in homework (and fossil lab if you’ve forgotten) • Get papers from front cart • Complete “Darwin’s Voyage of Discovery”. • Homework: Complete questions 2,3,5 and 6 on “Bird Beak Adaptation” Lab.

  19. Theory of Natural Selection • What do you think natural selection is? • Members of a species that are best suited to their environment survive and reproduce at a higher rate than other members of the species.

  20. What does this mean? • The strongest do not always survive. • The strongest do not always reproduce. • Those species with traits that are best suited to their environment will be those that survive and pass on those traits to their offspring. • Brown bear vs. white bear in the woods

  21. Do Now • Put“Bird Adaptation” lab in front of you • Answer these questions on a piece of paper: • What was the first multicellular species? • Which organism evolved first on land? • Why do we use absolute and relative dating together to create a fossil record? • Homework: finish “Bird” lab

  22. Natural Selection based on four principles • Overproduction • Variation • Adaptation • Selection

  23. Overproduction • When an organism reproduces, it makes more offspring than the environment can provide food and space for. • Only some will survive to adulthood • Only a few will reproduce successfully

  24. Variation • Natural differences, or traits, within a species. Can you name any? • Color, size, etc. • Variations are caused by changes in the genetic material, or mutations • These variations get passed on to the next generation.

  25. Adaptation • An inherited trait (variation) that gives an organism an advantage in its environment • Makes the organism better able to survive than other members of species

  26. Selection • Organisms with a particular adaptation are more likely to survive long enough to reproduce • This adaptation becomes more common in future generations • The variation has been selected for this environment by nature • The organism is evolving through natural selection

  27. Fan Pick • #1 fans the cards • #2 picks a card and reads to #3 • #3 answers • If #3 needs help, ask #4. • Everyone at table should agree • Write answers on paper • Need to tell what the animal is, and why the adaptation helps them survive.

  28. Do Now • Put “Bird Adaptation Lab” in center of table. • Take “Challenge and Extension” and study guide from cart. • Complete “Challenge and Extension” • Person #1 will collect all the labs for the table and put them in the In Bin.

  29. Speciation • Evolution of new species from an existing species • All the different finches on the Galapagos Islands probably evolved from one species of finch from South America.

  30. Isolation • In order for new species to evolve, some members must be separated from the rest of the species. • Geographic • Behavioral • reproduction

  31. Working in your group, what do you think it means to be isolated geographically? • How about reproductively?

  32. Geographic isolation • Members of a species become separated from the rest by some geographic barrier, like water or mountains. • The isolated organisms begin to show traits that enable them to survive in their new environment.

  33. Reproductive isolation • Members of a species reproduce at different times of the year, use different mating calls, or mate in different locations. • Soon these become two different species that can’t breed together.

  34. Work with your group • Come up with one different example of • Geographic isolation • Behavioral isolation • Reproductive isolation • Write it down, and be ready to share it with the class

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